package io;

import java.io.*;

public class CopyBuffer {
    public static void main(String[] args) throws IOException {
        FileInputStream fis=new FileInputStream("tupian.jpg");
        BufferedInputStream bis=new BufferedInputStream(fis);
        FileOutputStream fos=new FileOutputStream("tupiancp.jpg");
        BufferedOutputStream bos=new BufferedOutputStream(fos);
        int d;
        while((d=bis.read())!=-1){
            bos.write(d);
        }

        bis.close();
        bos.close();
    }
}
